Effects of elasticity of disposable blood transfusion set on precision of infusion pump(PDF)
《中国医学物理学杂志》[ISSN:1005-202X/CN:44-1351/R]
- Issue:
- 2018年第1期
- Page:
- 83-88
- Research Field:
- 医学信号处理与医学仪器
- Publishing date:
Info
- Title:
- Effects of elasticity of disposable blood transfusion set on precision of infusion pump
- Author(s):
- GAO Peng1; LUO Qizhi2; WEI Liang1; YUAN Lili2; ZENG Qingling2; LI Yongqin1
- 1. School of Biomedical Engineering, Third Military Medical University, Chongqing 400038, China; 2. Burn Research Institute, Southwest Hospital Affiliated to Third Military Medical University, Chongqing 400038, China
- Keywords:
- ; Keywords: disposable blood transfusion set; infusion pump; fluid resuscitation; infusion relative error; elastic coefficient
- PACS:
- R472
- DOI:
- DOI:10.3969/j.issn.1005-202X.2018.01.015
- Abstract:
- Abstract: Objective To discuss the effect of elasticity of disposable blood transfusion set on precision of infusion pump, and investigate the method to improve the precision of infusion pump using disposable blood transfusion set. Methods Four sets of each 6 kinds of disposable blood transfusion sets were selected, and the elastic coefficient of each disposable blood transfusion set was measured. Under room temperature of 25 ℃, each disposable blood transfusion set was tested twice with the infusion rate of 50, 100, 200, 400 mL/h for 12 h (using crystal as testing fluid) and 1 h (using colloid as testing fluid), respectively, and the actual infusion rate was recorded per hour. The infusion relative error was calculated and the relationships between infusion relative error and elastic coefficient, setting infusion rate and infusion time were analyzed. Results The mean value of elastic coefficients of disposable blood transfusion set ranged from 1.64 N/mm to 3.75 N/mm. When crystal was used as testing fluid, the mean value of infusion relative error ranged from -25.39% to 9.93%. The correlation coefficient between elastic coefficient and infusion relative error was -0.934 (P=0.006). The effects of infusion time on infusion relative error were trivial (P=0.624). However, both setting infusion rate and elastic coefficient had significant effects on infusion relative error (P=0.000, 0.000). The correlation coefficients of each disposable blood transfusion set between infusion relative error and setting infusion rate were
-0.993, -0.940, -0.954, -0.981, -0.698 and -0.953, respectively (P=0.007, 0.060, 0.046, 0.019, 0.302, 0.047, respectively); the correlation coefficients between infusion relative error and infusion time were -0.950, -0.799, -0.777, -0.414, -0.917 and -0.677, respectively (P=0.000, 0.002, 0.003, 0.181, 0.000, 0.016, respectively). Based on the above mentioned data, the obtained regression equation was as follow: infusion relative error=0.464-0.001×setting infusion rate -0.149×elastic coefficient, of this regression, F=696.908 (P=0.000). When colloid was used as testing fluid, the mean value of infusion relative error ranged from -24.04% to 10.49%, and the correlation coefficient between infusion relative error and elastic coefficient was -0.918 (P=0.010). Both elastic coefficient and setting infusion rate had remarkable effects on infusion relative error (P=0.000, 0.000). With colloid as testing fluid, the correlation coefficient of each disposable blood transfusion set between infusion relative error and infusion time were -0.967, -0.919, -0.945, -0.970, -0.710 and -0.964, respectively (P=0.033, 0.081, 0.055, 0.030, 0.290, 0.036, respectively), and the obtained regression equation was as follow: infusion relative error=0.459-0.001×setting infusion rate -0.137×elastic coefficient, of this regression, F=42.628 (P=0.000). Conclusion When the disposable blood transfusion set was used on infusion pump, the most important factor affecting infusion precision is the elasticity of the transfusion set. With the increase of elastic coefficient, the infusion relative error was decreased. In addition, infusion precision is also affected by setting infusion rate, and the infusion relative error was declined with the increase of setting infusion rate. The infusion time had no significant effect on infusion accuracy but the infusion relative error of some the blood transfusion sets are negatively correlated with infusion time.
Last Update: 2018-01-25